Networking

 Blog Post 4

 

4.1 Computer Network

 

Connects devices/computers in order to transmit information amongst the devices with ease. The transmission has a particular capacity which is called a Bandwidth, and is measured in the unit bps (beats per second). High capacity transmission technologies, such as the internet, are called Broadband.

 

 

4.2 Analog and Digital Signals

 

Analogue:

-continuous

-amplify

-frequency

 

 

Digital:

-discrete

-can be either on or off

 

 

 

 

 

Network Protocols

 

Protocols are just rules and regulations that look over transmissions across a network. A common protocol is called the ethernet. Transmission Control/ internet protocol technology allows people to transfer files through dodgy networks and receive the file uncorrupted. The model has four layers:

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4.7

4.3 Internet and the WWW:

 

Internet	Intranet	Extranet
-       Do’D’s project ARPAnet -       1969	-       Supports communication and collaboration inside -       Use internet protocols	-       Connects parts of the intranets from different organisations -       Use internet protocols

 

 

The World Wide Web makes information storage, retrieval, formatting, and presentation easier by adhering to widely accepted standards. With the aid of browsers, users can look through websites and obtain desired content by entering uniform resource locators, or URLs.

 

 

Internet Service Providers:

 

Allows individuals to access the internet through connecting via an online service.

 

Different internet connection methods:

Table 4.2

 

 

4.4  Network Applications

 

They allows users to browse and search data sources, in all topic areas, on the web. Things like search engines allow people to search for specific information by key words and report the results, and metasearch engines which can search several engines at once and integrate the findings of the various search engines to answer queries posted by users. Portals are online platforms designed to serve as personalized gateways to information and knowledge. They use advanced techniques to gather content from various systems and the internet.

 

Collaboration involves the combined efforts of two or more entities, such as individuals, teams, groups, or organizations, working together to achieve specific objectives.

A work group refers to a collection of two or more individuals who collaborate to accomplish a shared task.

A virtual group, or team, is formed when its members operate from separate locations, leveraging technology to collaborate remotely.

Crowdsourcing entails outsourcing a task to an undefined, typically large group of individuals through an open call for contributions.

 

 

Gray, H., Issa, T., Pye, G., Troshani, I., Rainer, R. K., Prince, B., & Hugh, J. W. (2015). Management

information systems. Wiley.